Bulletin 3. The flora of the Raritan Formation, 1911 - State of New ...

I8o
'PH,E RARIT'AfN FLORA.
and slender far such large leaves, 12 to, 15 pairs, branching
from
the midrib at nag'los of 45 _ or slightly more, somewhat flexuous
and iregular in their course, camptodrome. Tertiaries generally
transverse, forming a coarsely quadrangular areolation.
This species is quite variable, not only in size, but especially in
marginal characters, which show every gradation from nearly
entire forms to closely serrate forms; this is, however, a character
which is more or less variable in. all of the Raritan species
of this genus. This is a, very .distinct species, however, its
nearest ally apparently being C¢Icctroptly]lu_ lanceolc_tum, described
by Ettingshausen from the Cretaceous of Saxony, 1 and
which Heer apparently recognized in his Greenland material, z
Numerous specimens from New Jersey are irL Newberry's
_ollection, but none have the locality labels preserved. Two
specimens were obtained in recent collections from Milltown.
Occ_zrrence.--Milltown,.
Collections.--N. Y. Botanical Garden.
CELASTltOF_IYLLUM BRITTONIANUM
Hollick.
Celastrophylh_m BrittomTam*n_ Hollick in Newb., F1. Amboy
Clays, lO5, pl. 42, [. 37, 38, 46, 47, 1896.
Ward, lSth Ann. Rept. ld. S. Geol. Surv., 349, 358, 377,
378, 379, 1895 (nomen nudum).
Mort. U. S. Geol. Surv. vol. 48: 493, pl. Io7, [. 7, 19°6.
Description.--Leaves small, 4 cm. to 5 cm. in len_h, by 1.2
era. to 1.5 cm. in breadth, lanceolate, or in some specimens somewhat
spatnlate in outline. Apex subacute. Base somewhat
decurrent and straight sided. Margins entire below, denticnlate
above. Midrib stout. Secondaries numerous, somewhat irregular,
of fine calibre but prominent, eamptodrome.
This species is clearly distinct {rom Celastropl_yllum spat_-
la_htm Newb., altbough it stands nearer the latter tharL to any
aEttingshausen,Kreidfl.yon Niederschoena,1867,p. 26o,I_1.ill, fig. 9.
'Heer, F1. Foss. Arct.,vol. VII, 1883,tx 4o, pl, lxlv, t_g.9a; pL tx'v, _gs.
7,8.
NEW JERSEY GEOLOGICAL SURVEY